in south africa, derek mcginty, wusa9. >> that handshake between president obama and raul castro has upset cuban-american legislators who fear it will be used for propaganda purposes. it can be explained by the fact that fidel castro and nelson mandela have been close allies. cuba was one of the first countries mandela visited after his release from prison. and tonight, nelson mandela memorial at howard university has been postponed because of the weather. it will be rescheduled after the new year. >>> this afternoon, we are following a developing story out of month of montgomery county. >> in germantown, kristen. >> reporter: that's right, this tutor who lived in that home, he has been teaching and coaching both public and private school high school-aged students in this area for years. this morning, he was arrested and charged with sexually abusing one of those students, but detectives say there's a good chance that there may be more victims. >> his name is daniel. he is 30 years old and he first got on their radar last month after a school official notified police. he was never a